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China reports its first unknown pneumonia cases to WHO.
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Chinese health authorities close down the Huanan Seafood Market in Wuhan.
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Chinese authorities confirm the identification of a novel coronavirus.
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The virus is now known to cause fatality. The first fatality, of a 61-year-old man, is announced by the Wuhan Municipal Health Commission two days after the actual death.
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China maps out the entire genomic sequence of 2019-nCoV and shares it publicly.
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Japanese authorities confirm that a Japanese national tested positive for the virus, which is understood as the first foreign case. This man, in his 30s, developed a high fever on January 3 in Wuhan and tested positive for the virus in Japan three days later.
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The U.S implements screenings for symptoms at airports of San Francisco, New York, and Los Angeles.
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South Korea reports its first confirmed case of a Chinese national.
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The National Institutes of Health announces that it has begun on the development of a vaccine against the virus.
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WHO publishes its first situation report on the novel coronavirus.
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The first confirmed case in the North American continent is reported in the U.S.
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Wuhan temporarily closes airports and railway stations.
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WHO announces that the outbreak is not yet a public emergency of international concern.
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A total of 13 cities in Hubei goes under lockdown.
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The first evacuation is planned by Vietnam, as the government organizes a flight to evacuate its citizens and diplomats.
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The first confirmed case in the Australian continent is reported.
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The first confirmed case in the European continent is reported in France.
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The first confirmed person-to-person transmission is reported in the US.
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WHO officially declares the 2019-nCoV a global emergency.
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The U.S President's administration announces denial of entry of foreign nationals who have traveled in China in the last 14 days.
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China completes building the Wuhan quarantine hospital in 8 days.
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Hong Kong introduces prison sentences and fines to anyone breaching the quarantine rules.
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Death toll exceeds 900, surpassing that of MERS, although the fatality rate is lower at a current level.
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China begins testing a candidate vaccine on animals.
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WHO announces the official name of the virus: COVID-19.
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Pakistan refuses to evacuate its citizens in Wuhan, worrying an outbreak at home due to its poor health care system.
